This day was going to bring us lots of events. After breakfast we went to the Tourist centre.
Some words should be said about Kiruna. The name Kiruna is a Swedish version of the Sami word giron, which means ptarmigan (the symbol of the settlement). It is a small town with population of about 23000 people. Kiruna grew around the mine. The earliest report of the existence of iron ore in Kiruna was made in 1696. There are 2 iron-bearing mountains near Lake Luossajarvi – Kiirunavaara and Luossavaara. The ore body of the second mountain is almost exhausted and not excavated. Now it serves skiers by its ski slopes. But that of the first one is exploited. And the Infomine was set for tourists at the 540-m level below the original peak of Kiirunavaara. And we were going to visit this fantastic depth.
The LKAB (Luossavaara-Kiirunavaara AB) Company has been exploiting the ore body of Kiirunavaara Mountain since 1900. And it organises excursions in the Infomine. That is why we came to the Tourist centre to take the bus to get to the underground of Kiirunavaara. Soon it picked us up to “deliver” straight into the mountain. We were travelling down through the mine until the LKAB’s buss stopped at a level of 540 m below the original peak of Kiirunavaara. Our English speaking guide met us here, so I had to become a translator for my group. We were taken through this mine which had some exhibitions. To tell everything we knew about would be impossible in my story. I’ll try to enlighten the major features.
The ore body in Kiruna is about 4 km long and has an estimated depth of 2 km. The predominant mineral in the mines is magnetite. Magnetite has high iron content and it is magnetic, which is favourable in the upgrading process. In the past, main levels in the Kiruna mine have been built at the 275, 320, 420, 540, and 775–meter levels (below the original peak of Kiirunavaara). The current main level is at 1045 meter. Iron ore is excavated here 24 hours a day. The process chain looks like this.
First a special machine drills holes in the ore body. In these holes a bomb should be put. Then it is blasted (blasting actually is done only at night before 2.30 a.m. and 3.00 a.m., so the local people could feel something like a small earthquake). The crude ore is loaded to trucks or trains by a loading machine, hauled to a central crushing plant, and then hoisted to surface level by a lift with high speed (17 m/sec – I did not believe!!!) for further processing. The sorting (concentrating) plant upgrades ore to fines, when the pelletizing plant makes pellets, the main product of LKAB, with very high iron content. From the pelletizing plant pellets are automatically loaded to railway cars for further transport. Every day 11 trains are going to the Narvik harbour (Norway), where ships are loaded with pellets to distribute it to the customers in the rest of Europe, and only 1 train is going to Lulea, the port on the Baltic Sea. Narvik has a huge benefit, that the Norway Sea is never frozen and free of ice all year round due to the Gulf Stream. Of course, it is favourable for shipping.
Our group also was shown the film about the operating of LKAB; we also visited a museum, where we could see the equipment of “ancient times”. The guide demonstrated us the drilling and loading machines of modernity, which impressed us by their big sizes. We were allowed to take the small packs with pellets.
In the end it should be said that many machines are remote-controlled that increases the security of the workers. And this is no wonder because the main motto of the company is: ”Safety first!”
After such an exciting journey, which lasted 2 fours, it is not bad to have dinner. We came back to the camping, and after eating went to climb Luossavaara Mountain. There was an ecological trail we were following. It was cold and windy, that a bit complicated our walk. But I did not mention that surrounding has radically changed over the past 2 days. It is the transition from one natural zone to another. Before this moment we could see the taiga with its coniferous forests. And in Norrbotten we saw the Lapland fir tree. Kiruna is located on the Norland plateau, which elevates at 500 m above the see level. The higher we climbed, the more species of tundra’s flora we found. The Kiruna is located in transitional natural zone between taiga and tundra. The coniferous species of trees are gradually replaced by little birches. You will find hardy shrubs, mosses, and lichens higher. At the top of the mountain the group took some photos.
We passed all the trace, which led to the camping, through. Some students took several minerals with themselves because of Alexandr’s request. Our group leader provided us with free time to go sightseeing. Vicktor Mikhailovich (the professor of chemistry of the University of Tver) and I went to the city. We visited the City Hall, original building with metallic constructions, built in 1963. Then we paid our attention for the Kiruna church, which is wooden. Unfortunately it was closed. But we found the traces of the previous wedding – little Hearts made of bright paper were on the ground in front of the entrance.
To conclude the story about Kiruna, we made sure that it is the one of the towns that Sweden is rich of. Kiruna is quiet and cosy with friendly population.
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